bsmphilly.com Topics: bobby rahalhttp://www.bsmphilly.com/topics/bobby-rahal/?utm_medium=RSS2012-02-01T14:21:00+00:00Local dentist and Pocono Raceway guru dies at 862012-02-01T14:21:00+00:00William Kennyhttp://www.bsmphilly.com/2012/feb/1/4605-local-dentist-and-pocono-raceway-guru-dies-at-86.html/?utm_source=RSS_Feed&utm_medium=RSS<p><!--StartFragment--> </p><p>Dr. Joseph &ldquo;Doc&rdquo; Mattioli was a Northeast Philly dentist and real estate investor who didn&rsquo;t know the first thing about carburetors or transmissions, let alone the high-stakes auto racing industry.</p> <p>But he knew about managing money. And in 1965, he knew that he was in jeopardy of losing an ...